The pasilla nergro is a large, black chile with a skin the color of eggplant. It's an important ingredient for mole, sauce, chile, or making into a chile paste for rubbing on meats. Modestly hot, you can easily add them to a range of dishes. The flavor of dried pasilla chiles can benefit from moderate roasting, or soaking in hot water for a few minutes (for best results, don't soak the peppers more than 15-20 minutes).